Boring-machine.



PATENTED AUG. 1, 1905.`

J. PURGBLL.

BORING MACHINE. APPLIOATION rILm JULY 9,1904.

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APPLICATION FILED JULY 9.1904.

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JOHN PIURCELL, OF PURCHASE LINE, PENNSYLVANIA.

BORING-MACHINE.

Specification of Letters Patent.

Patented Aug. 1, 1905.,

Application filed Tilly 9, 1904. Serial No. 215,852.

T a/ZZ whom, it may concern:

Be it known that I, JOHN PUROELL, acitizen of the United States, residing atPurchaseLine, in the county of Indiana, State of Pennsylvania, have invented certain new and useful vImprovements in Boring-Machines; vand I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to boring-machines, and more particularly to those for boring wells, and has for its object to provide a boring-machine including a novel means for raising and lowering the bit-stock and in which the support for the `stock may be easily adjusted to suit dierent conditions. V

A further object is to provide a boring-machine which may be readily7 moved from place to place.

Other objects and advantages will be apparent from the following description, and it will be understood that modifications of the specific construction shown may be made and any suitable materials may be used without departing from the spirit of the invention'.

In the drawings forming a portion of this specication, and in which like numerals of reference indicate similar parts inthe several views, Figure 1 is a side elevation of the complete machine. Fig. 2 is a top plan view of Fig. l. Fig. 3 is a section on line 3 3 of Fig. l;

Referring now to the drawings, thel present invention comprises a frame 5, having wheels 6 Aand having uprights 7 and 8 secured against its opposite sides adjacent to its forward end 9. The uprights extend parallel to each other and have braces 10 securedat one end to their upper ends, the remaining ends of the braces being secured to the frame 5, adjacent to its rearward end.

" Extending upwardly from the frame 5, rearwardly of the uprights-7 and 8, is a post 11,

having bearings 12 at its upper ends, in which low the rearward end 17 of the walking-beam,

is a shaft 18, having a crank 19 therein, upon which is journaled a pitman 20, the pitman beingv pivotally connected at its free end with a rod 21, which is connected with the end 17 of the walking-beam, so that when the shaft is revolved the walking-beam is. operated.

Disposed upon' the rearward end of the frame is a source of power-22, which is preferably a gasolene or steam engine, and this is connected with the shaft 18 to revolve the latter.

Loosely disposed upon the shaft 18 are a pair of belt-wheels 23 and 24,' having clutch members 25 for engagement by other clutch members 26, carried by the shaft 18 to revolve the wheels with the shaft.

Journaled transversely of the frame, be-

' tween the shafts 18 and the post 11, are drums 27 and 28, the drum 28 being disposed forwardly of the drum 27, as shown. Each of these drums is provided with a pulley-wheel 29, with which are engaged belts 3() and 31, the belt 30 being yengaged with the pulleywheel with the drum 27 and with the beltwheel 23', while the belt 31 is engaged with the pulley-wheel of the drum 28 and with the belt-wheel 24, and it will thus be apparent that through the medium of the clutches described the belt-wheels may be caused to revolve with the shaft 18 and will revolve the drums 27 and 28.

-Journaled in bearings'32 at the top of the post 11 is a grooved wheel 33, and secured to the drum 27 and passing over this grooved wheel is a cable 33', which is engaged beneath the pulley 16 and then passes upwardly and over a second grooved wheel 34, which is journaled in an opening 35 in the top plate 36 of a supporting-tripod 37,4 the cable passing downwardly and being secured at its free end to a bit-stock 38.

Journaled between the upper and lower ends, respectively, of the uprights 7 and 8 are grooved wheels 39 and 40, and secured to the drum 28 is a cable 4l, which is engaged beneath the wheel 40 and is then passed upwardly and rearwardly and is engaged over the wheel 39, descending forwardly thereof and being removably secured at its free ends to the top plate 36 of the tripod.

The legs 42 of the tripod are pivoted to the top plate, and it will be apparent that when the drum 28 is revolved the cable 4l will be wound thereon and the top plate of the tripod will be raised from the ground, after which the legs 42 may be moved upon their pivots to bring their lower ends into engagement with the ground. When the machine is not in use, the top plate 35 may be raised suflciently Alower end, and from the above-described construction it will be seenthat when the shaft 18 is revolved the walking-beam will be operated, as already described, and the bit-stock 38 will be alternately raised and lowered to bring the bit 44 out of and into contact with the surface to be bored.

What is claimed is- 1. A boring-machine comprising a tripod, a bit-stock depending from the tripod and having a bit engaged in its lower end, means for moving the bit-stock vertically to bring the bit into and out of engagement with the surface to be bored, and means for raising and lowering the tripod.

2. A machine of the class described comprising a supporting-frame, a pulley carried by the frame at the upper portion thereof, acable engaged with the pulley, a bit connected with the cable and depending from the frame, a drum with which the cable is connected, said drum being arranged for rotation to wind the cable thereupon` or to unwind it therefrom to raise or lower the bit respectively, and means for raising and lowering the frame.

3. In a boring-machine, the combination with a frame, of spaced uprights secured to the forward end thereof,a pulley mounted between the upper ends ofthe uprights, a pulley mounted between the uprights below the first-named pulley, a drum revolubly mounted upon the frame` a cable secured to the drum` and engaged beneath the second-named pulley and passing upwardly and forwardly over the firstnamed pulley, a supporting-frame secured to the free end of the cable and having pivoted legs, means for revolving the drum to raise and lower the supporting-frame, a pulley carried by the supporting-frame, a post disposed upon the first-named frame, a walking-beam mounted upon the post, a pulley mounted upon the post above the walking-beam, a second drum mounted upon the first-named frame, a pulley carried by the forward end of the walking-beam, a cable secured to the second-named drum and engaged over the pulley mounted upon the post, under the pulley carried by the walking-beam and over the pulley carried by the supporting-frame, a bit connected with the free end of the second-named cable, means for revolving the second-named drum to raise the bit, said drum being also revoluble to lower the bit, and means for operating the walking-beam to raise and lower the bit independently of the drum.

4. In a machine of the class described comprising a frame, uprights pivotally connected with the frame at its forward end and movable to extend upwardly therefrom, or to lie thereupon, braces removably connected with the uprights and with the frame to hold the uprights in position to extend upwardly from the frame, a pulley mounted at the upper ends of the uprights, a cable engaged with the pulley, a bit-supporting frame connected with one end of the cable, a drum mounted upon the frame and with which the other end of the cable is engaged, said drum being arranged for rotation to raise or lower the bit-supporting frame, means for rotating the drum, a pulley carried by the bit-supporting frame, a cable engaged with the pulley, a bit engaged with one end of the second cable, a second drum revolubly mounted in the iirst-nanied frame and with which the second cable is connected to be wound thereon. said drum being arranged for rotation to vary the position of the bit, means for raising and lowering the bit independently of said drum, and supporting-hooks carried by the first-named frame, said supporting-frame being adapted for engagement at times in the hooks.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN IURCELL.

Witnesses:

R. D. TONKIN,

his

ALEXANDER BnnnINe En.

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